package com.rd.teacher.jichao.day02;

public class Weekday {

    public static final int SUN = 0;
    public static final int MON = 1;
    public static final int TUE = 2;
    public static final int WED = 3;
    public static final int THU = 4;
    public static final int FRI = 5;
    public static final int SAT = 6;

    public static void main(String[] args) {
//        int day = 4;
//        if(day == SUN){
//
//        }else if(day == MON){}

//        switch (day){
//            case SUN:
//            case MON:
//        }
        // 直接使用常量，需要进行类型的判断以及范围的判断等等
    }
}
